Warp-beam lock



April 15 1924. 1,490,810

J. T. EMERSON WARP aim LOCK Y Filed Jan. 23. 1923 mmlrok dazzles Z'L'zmensdip.

"/44 t H z? Irma/ms Patented Apr. 15, 1924 .5 N I T JAZMES EMERSON, OF CORDOVA, ALABAMA.

WARP-BEAM LOCK.

Application filed January as, 1923. Serial No. 614,421.

T 0 all whom it may concern:

Be it known that 1, JAMES T. EMERSON, a citizen of the United States, and a resident of Cordova, in the county of Walker and State of Alabama, have invented certain new and useful Improvements in arp- Beam Locks, of which the following is a specification. I

This invention relates to a warp beam lock or retainer for looms,

In looms, it is necessary that the warp beam be easily removable, and the same is usually journaled or supported withthis purpose in View. Considerable strain is exerted upon the warp beam during each pick operation of the loom. This strain causes the work beam to jump from its journal support. A jump of this character or any other vibration of the warp willcause a rough weave or surface in the cloth produced, which is entirely apparent to those skilled in the art.

With the above in view, it is the object of the present invention to provide lock or retaining means whereby to positively insure that a warp beam cannot jump or rise from its-journal support.

It is also an object of the invention that the looking or retaining means for the warp beam be entirely automatic in operation.

A further object of the invention is that the locking and retaining means for the warp beam be in the form of an attachment if so desired, and easily applied to any structure of loom.

Other objects and objects relating to de tails of construction,combination and arangement of parts will'hereinafter appear in the detailed description to follow.

The invention is illustrated by way of example in the accompanying drawings, in which- Figure 1 ,is a fragmentary perspective view showing a portion ofthe frame of a loom used for journalling the one end of a warp beam, and also showing the app'licag die-may ump during each pick operatlon tion of the present invention, a

Figure 2 is an inside elevation of the same,

Figure 3 is a sectional view taken substantially on the lines 3-8 of Figure 2, and

Figure 1 is a detail perspective View of the warp beam spindle engaging element of the present looking or retaining means.

Referring to the drawings more particularly, 10 indicates generally a portion of a similar to the bearing surface 12.

loom frame, which is commonly employed for supporting one end of a warp beam. That is, this particular portion of the frame is provided with suitable journal means whereby to journal the trunnion or spindle occurring at one end of a warp beam. In

the present instance, the frame member 10 is formed with a suitable oifset as at 11, which is provided with a bearing surface 12 adapted to journal a warp beam spindle or trunnion as indicated at 13. Also the frame member 10 is provided. with a perch or.

projection 14 which is likewise formed upon its upper surface with a bearing surface 15, The frame member 10 is further provided with an extension or protrusion 16 which is dis posed directly above the bearing surface 12, and which has its upper edge provided with a notch as at 17, the purpose of which will later become apparent.

The perch or protrusion 14 is preferably provided with a laterally extending stud 17,

' and to this stud there is pivotally connected which the bolt 20 may he extenc ed. This latch member 21 is also formed with a tooth 23 which occurs upon its lower edge, and is 7 adapted to engage in the notch 17 of the extension 16, and thereby to hold the bolt in the position shown in the different figures of the drawing. 'It should be here observed that the bolt 20 is disposed in substantially radial alinement with the center of the spin-- dle 13, and further this bolt is disposed in direct alinement with the direction the spinof the loom. These particular features are important in order that the present invention operate to its highest efiiciency;

Upon the inner end of the bolt, there is journaled an eccentric 24 which is in the form of a disk as shown, and having projecting from its inner face a plurality of studs 25, said studs occurring'adjacent the peripheral edge of the eccentrical member.

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Between. the member 24: and the supporting bar 18, there is disposed the spindle engaging member 26 which is specifically shown in Figure 4 of the drawing. This member preferably comprises a journal head portion 27 which has a semi-circular face 28 adapted to fit upon the spindle 13. The head portion is integrally formed with an extension 29 which preferably is fiat, and is provided with an oblong opening 30 adapted to receive the bolt 20. This fiat portion 29 forms with the head, an offset or shoulder 31, said shoulder occurring upon the inner side of the member 26, as shown. The offset 31 r is disposed immediately beneath the eccentric 24 and the width thereof is substantlally equal to the thickness of the member 24.

The stud 17 as best shown in Figure 3 extends considerably from the inner side of the supporting bar 18, and to the free end of this stud there is secured the one end of a coil spring 32, while the other end of this coil spring terminates in a hook 18 a which may be connected to either of the studs 25 carried bythe eccentric 2 1.

The operation of the present invention is as follows. The spring 32 tends to rotate the eccentric 24 and this eccentric is so positioned that when rotated under the influence of the spring 32, the same will exert a -onstant downward pressur upon the member 26, and'this member will constantly press upon the spindle 13. The spindle 13 will in this manner be locked against jumping from its journal support, that is, the frame 10. The bolt 20 is in radial alinement with the rotative axis of the spindle 13, as before stated, and also this bolt is direct y in alinement with the direction which the spindle might tend to move. The lower end portion of the member 26 engages upon the spindle 13, and a portion of the eccentric 24E is at all times disposed between the bolt 20 and this portion of the member 26, and thereby producing a direct locking action to eliminate any possibility of the spindle 13rising or jumping during the operation of the associated loom. It is quite apparent that the device operates entirely automatically in that the spring 32 will at all times tend to rotate the eccentric 2a, and thus to maintain a certain pressure upon the member 26 so that itmay at all times lock the spindle 13 in the position desired. Further more, the latch member 21 eliminates any possibility of the supporting bar 18 swinging from its applied position.

When it is desired to remove a warp beam it is only necessary to rotate the latch 21 so that its tooth 23 is disengaged from the notch 17, and permit the member 18 to be swung forwardly upon its pivot 17, so that the same is clear of the spindle 13. Usually the spindle is directly lifted from its support after the warp upon the same has been entirely exhausted. In positioning the spindle, it is customary to place the same upon the perches or rests 14, and after properly connecting the warp, the beam is positioned upon its bearing supports.

While I have shown the particular application of my invention, I wish it to be understood that I am not to be so limited in that I am fully aware of the fact that the same might be used for other purposes withequal advantages, as indicated by the appended claims.

I claim:

1. In combination, a spindle or shaft, a journal support therefor, a stationary stud or bolt disposed radially to the longitudinal axis of said spindle or shaft, a journal head adapted to fit upon the spindle or shaft and having an arm extending therefrom, provided at its free end with an elongated slot through which said stationary stud extends, and an ecce trio journalled on said stationary stud and adapted to engage said journal head and'permit the same when rotated to press the journal head into close engagement with said spindle or shaft and lock the same against outward movement with relation to the said spindle or shaft. 7

2. In combination, a spindle or support, an arm pivotally supported at its one end and adapted to be swung so that its free end is in-radial alinement with the longitudinal axis of said spindle or shaft, means for looking the arm in its last named. position, a journal head adapted to engage said spindle or shaft, and means interposed between the free end of said arm and said journal head whereby to lock the journal head in its applied position.

3..In combination, a spindle or support, an arm pivot-ally supported at its one end an arm pivotally supported at its one end and adapted to be swung so that its free end is in radial alinement with the longitudinal axis of said spindle or shaft, means for locking the arm in its last named position,

a journal head adapted to engage said spindle or shaft, a stud extending laterally from the free end of said arm and parallel to said spindle or shaft, and an eccentric journaled by said stud and adapted to be rotated for engaging said journal head and thereby to lock the same in its applied position.

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5. In combination, a spindle or support, an arm pivotally supported at its one end and adapted to be swung so that its free end is in radial alinement with the longitudinal axis of said spindle or shaft, means for locking the arm in its last named position, a journal head adapted to engage said spindle or shaft, a stud extending laterally from the free end of said arm and parallel to said. spindle or shaft, means extending from said journal head adapted to engage the stud and guide the journal head for outward movement radially with respect to the spindle or shaft, an eccentric journaled upon the stud and adapted to engage upon the journal head and lock the same in its applied position.

6. In combination with a spindle or shaft, a journal support therefor, an arm pivotally supported at its one end adapted to be swung so that its free end is in radial alinement with said spindle or shaft, means for locking the arm in this last named position, a stud extending laterally from the free end of said arm and parallel. with said spindle or shaft, a journal. head adapted to lit upon said shaft, means extending from said journal head adapted to engage the stud and guide said journal head for radial outward movement with respect to the shaft, an eccentric member turnably supported by said stud and adapted to engage upon said journal head and urge the same inwardly when rotated in a certain direction, and to also lock said journal head against outward or radial movement with respect to said spindle or shaft.

7. In combination with a spindle or shaft, a journal support therefor, an arm pivotally supported at its one end adapted to be swung so that its free end is in radial alinement with said spindle or shaft, means for locking the arm in this last named position, a stud extending laterally from the free end of said arm and parallel with said spindle or shaft, a journal head adapted to fit upon said shaft, means extending from said journal head adapted to engage the stud and guide said journal head for radial outward movement with respect to the shaft, an ec-' centric member turnably supported by said stud and adapted to engage upon said journal head and urge the same inwardly when rotated in a certain direction, and to also lock said journal head against outward or radial movement with respect to said spindle or shaft, and means for constantly urging the concentric to rotate in the direction for pressing said journal head upon the shaft.

8. In combination with a spindle or shaft, a journal support therefor, an arm pivotally supported at its one end adapted to be swung so that its free end is in radial alinement with said spindle or shaft, means for locking the arm in this last named position, a stud extending laterally from the free end of said arm and parallel with said spindle or shaft, a journal head adapted to fit upon said shaft, means extending from said journal head adapted to engage the stud and guide said journal head for radial outward movement with respect to the shaft, an eccentric member turnaoly supported by said stud and adapted to engage upon said journal head and urge the same inwardly when rotated in a certain direction, and to also look said journal head against outward or radial movement with respect to said spindle or shaft, and a coil spring having its one end connected to said eccentric and its other end connected to a stationary support, and adapted to ur e said eccentric to rotate in a direction for urging said journal head inwardly and upon said spindle or shaft.

9. In combination, a spindle or shaft, a journal support therefor, and means for positively locking the shaft against jumping or rising movement from said journal support, said means comprising a retaining member disposed radially to the shaft and I adapted to engage upon said shaft at its interend, and means whereby inward pres sure may be continuously exerted against the retaining member whereby to hold the shaft against jumping or rising movement with the respect to the journal support therefor.

JAMES T. EMERSON. 

